Level rule



FIG. 1 is a top plan view of a level rule showing my new design with portions broken away for ease of illustration, it being understood that the scale markings are continuous throughout its length;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left end elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a cross-sectional view thereof as taken from line 5--5 of FIG. 1;

FIG. 6 is a cross-sectional view thereof as taken from line 6--6 of FIG. 1;

FIG. 7 is a bottom plan view thereof on a reduced scale. 

The ornamental design for a level rule, as shown and described. 